Which expression is identical to 1 + tan^2theta?

  1. cos^2theta
  2. cot^2theta
  3. csc^2theta
  4. sec^2theta
Answer

D) sec^2theta

Using sin^2theta + cos^2theta = 1 and the definitions of the ratios, 1 + tan^2theta = sec^2theta. SLO M-09-B-23 · Knowledge

Mathematics MCQ · More Trigonometric Identities MCQs · Practise